Abstract
Pressure-induced structural transitions and associated changes in magnetism of the light RAg have been thoroughly investigated from measurements of electrical resistivity ρ, ac magnetic susceptibility up to 37 kbar, magnetization σ up to 15 kbar and compressibility up to 3 kbar in temperatures from 1.5 K to 300 K. A cubic to tetragonal structural transition T M is found to be induced at pressure p c =6, 2, 10 and 30 kbar for R=La, Ce, Pr and Nd, respectively, and to increase with further increasing ρ at about the same rate of +13∼+16 K/kbar. The appearance of T M and the different p c values for the RAg are discussed on the basis of the band Jahn-Teller model. T M is accompanied by a shift of the magnetic ordering temperature T mag . For CeAg, another structural transition T M is also found at ρ=20 kbar. The remarkably larger pressure effects of T map , ρ and σ are briefly discussed with recent theories of the Kondo lattice.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
